Pulspolarographische Bestimmung von Metallionen unter Ausnutzung der Ligandenkatalyse
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Auteurs : RBID : ISTEX:216_1980_Article_BF00476185.pdfEnglish descriptors
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Abstract
The determination is based on the anion-induced In (III) wave, the sensitivity being dependent on the Alizarin S concentration. For eliminating the interference by cadmium and other elements, In is extracted into butyl acetate and re-extracted with hydrochloric acid. The latter is necessary in order to obtain a polarographically active form of the complex, taking advantage at the same time of the higher sensitivity of the wave in aqueous solution. The presence of gallium (which behaves similar to indium) requires further addition of Alizarin S after reextraction and fresh preparation of the calibration curve. Presence of aluminium requires additional In extraction as chlorocomplex. The standard deviation of the method is Ip=0.237±0.009 μA (±4%) for 10−5 M In(III).
DOI: 10.1007/BF00476185
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<record><TEI><teiHeader><fileDesc><titleStmt><title>Pulspolarographische Bestimmung von Metallionen unter Ausnutzung der Ligandenkatalyse</title><author><name>K. Keim</name><affiliation><mods:affiliation>Lehrstuhl für Anorg.-Analyt. Chemie, Anorg.-chem. Institut der Univ. Münster, Gievenbecker Weg 9, D-4400, Münster, Westf., </mods:affiliation><wicri:noCountry code="subField"></wicri:noCountry></affiliation></author><author><name>H. -D. Sommer</name><affiliation><mods:affiliation>Lehrstuhl für Anorg.-Analyt. Chemie, Anorg.-chem. Institut der Univ. Münster, Gievenbecker Weg 9, D-4400, Münster, Westf., </mods:affiliation><wicri:noCountry code="subField"></wicri:noCountry></affiliation></author><author><name>F. Umland</name><affiliation><mods:affiliation>Lehrstuhl für Anorg.-Analyt. Chemie, Anorg.-chem. Institut der Univ. Münster, Gievenbecker Weg 9, D-4400, Münster, Westf., </mods:affiliation><wicri:noCountry code="subField"></wicri:noCountry></affiliation></author></titleStmt><publicationStmt><idno type="RBID">ISTEX:216_1980_Article_BF00476185.pdf</idno><date when="1980">1980</date><idno type="doi">10.1007/BF00476185</idno><idno type="wicri:Area/Main/Corpus">000464</idno><idno type="wicri:Area/Main/Curation">000464</idno><idno type="wicri:Area/Main/Exploration">000850</idno></publicationStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alizarin S</term><term>Best. von Indium</term><term>Polarographie, Pulse</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="eng">The determination is based on the anion-induced In (III) wave, the sensitivity being dependent on the Alizarin S concentration. For eliminating the interference by cadmium and other elements, In is extracted into butyl acetate and re-extracted with hydrochloric acid. The latter is necessary in order to obtain a polarographically active form of the complex, taking advantage at the same time of the higher sensitivity of the wave in aqueous solution. The presence of gallium (which behaves similar to indium) requires further addition of Alizarin S after reextraction and fresh preparation of the calibration curve. Presence of aluminium requires additional In extraction as chlorocomplex. The standard deviation of the method is Ip=0.237±0.009 μA (±4%) for 10−5 M In(III).</div></front></TEI><mods xsi:schemaLocation="http://www.loc.gov/mods/v3 file:///applis/istex/home/loadistex/home/etc/xsd/mods.xsd" version="3.4" istexId="5128d844cab1d49c8048d3a5c1e8323c17608512"><titleInfo lang="ger"><title>Pulspolarographische Bestimmung von Metallionen unter Ausnutzung der Ligandenkatalyse</title><subTitle>II. Mitteilung: Indium in Gegenwart von Alizarin S</subTitle></titleInfo><name type="personal"><namePart type="given">K.</namePart><namePart type="family">Keim</namePart><role><roleTerm type="text">author</roleTerm></role><affiliation>Lehrstuhl für Anorg.-Analyt. Chemie, Anorg.-chem. Institut der Univ. Münster, Gievenbecker Weg 9, D-4400, Münster, Westf., </affiliation></name><name type="personal"><namePart type="given">H. -D.</namePart><namePart type="family">Sommer</namePart><role><roleTerm type="text">author</roleTerm></role><affiliation>Lehrstuhl für Anorg.-Analyt. Chemie, Anorg.-chem. Institut der Univ. Münster, Gievenbecker Weg 9, D-4400, Münster, Westf., </affiliation></name><name type="personal"><namePart type="given">F.</namePart><namePart type="family">Umland</namePart><role><roleTerm type="text">author</roleTerm></role><affiliation>Lehrstuhl für Anorg.-Analyt. Chemie, Anorg.-chem. Institut der Univ. Münster, Gievenbecker Weg 9, D-4400, Münster, Westf., </affiliation></name><typeOfResource>text</typeOfResource><genre>Originalabhandlungen</genre><genre>Original Paper</genre><originInfo><publisher>Springer-Verlag, Berlin/Heidelberg</publisher><dateCreated encoding="w3cdtf">1979-11-24</dateCreated><dateValid encoding="w3cdtf">2004-10-02</dateValid><copyrightDate encoding="w3cdtf">1980</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">ger</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="eng">The determination is based on the anion-induced In (III) wave, the sensitivity being dependent on the Alizarin S concentration. For eliminating the interference by cadmium and other elements, In is extracted into butyl acetate and re-extracted with hydrochloric acid. The latter is necessary in order to obtain a polarographically active form of the complex, taking advantage at the same time of the higher sensitivity of the wave in aqueous solution. The presence of gallium (which behaves similar to indium) requires further addition of Alizarin S after reextraction and fresh preparation of the calibration curve. Presence of aluminium requires additional In extraction as chlorocomplex. The standard deviation of the method is Ip=0.237±0.009 μA (±4%) for 10−5 M In(III).</abstract><abstract lang="ger">Das beschriebene Verfahren zur pulspolarographischen Indiumbestimmung beruht auf einer anioninduzierten Adsorptionsstufe des In3+, wobei die Empfindlichkeit von der Alizarin S-Konzentration abhängig ist. Um Störungen durch Cadmium und andere Elemente zu vermeiden, wird In mit Butylacetat extrahiert und anschließend mit Salzsäure reextrahiert. Dies ist notwendig, um eine polarographisch aktive Form des Komplexes zu erhalten. Gleichzeitig wird dabei die größere Empfindlichkeit der Stufe in Wasser ausgenutzt. Bei Gegenwart von Gallium, das sich ähnlich wie Indium verhält, ist nach der Reextraktion weiterer Alizarin S-Zusatz notwendig und dadurch auch die Aufstellung einer neuen Eichkurve. Bei Gegenwart von Aluminium muß eine Extraktion des In als Chlorokomplex vorgeschaltet werden. Die Standardabweichung der Methode liegt bei Ip=0,237 ±0,009 μA (±4%) für 10−5 M In3+.</abstract><subject lang="eng"><genre>Key words</genre><topic>Best. von Indium</topic><topic>Polarographie, Pulse</topic><topic>Alizarin S</topic></subject><relatedItem type="series"><titleInfo type="abbreviated"><title>Z. Anal. Chem.</title></titleInfo><titleInfo><title>Fresenius' Zeitschrift für analytische Chemie</title><partNumber>Year: 1980</partNumber><partNumber>Volume: 301</partNumber><partNumber>Number: 3</partNumber></titleInfo><genre>Archive Journal</genre><originInfo><dateIssued encoding="w3cdtf">1980-01-01</dateIssued><copyrightDate encoding="w3cdtf">1980</copyrightDate></originInfo><subject usage="primary"><topic>Chemistry</topic><topic>Analytical Chemistry</topic><topic>Food Science</topic><topic>Inorganic Chemistry</topic><topic>Physical Chemistry</topic><topic>Monitoring/Environmental Analysis/Environmental Ecotoxicology</topic></subject><identifier type="issn">0016-1152</identifier><identifier type="issn">Electronic: 1618-2650</identifier><identifier type="matrixNumber">216</identifier><identifier type="local">IssueArticleCount: 14</identifier><recordInfo><recordOrigin>Springer-Verlag, 1980</recordOrigin></recordInfo></relatedItem><identifier type="doi">10.1007/BF00476185</identifier><identifier type="matrixNumber">Art3</identifier><identifier type="local">BF00476185</identifier><accessCondition type="use and reproduction">MetadataGrant: OpenAccess</accessCondition><accessCondition type="use and reproduction">AbstractGrant: OpenAccess</accessCondition><accessCondition type="restriction on access">BodyPDFGrant: Restricted</accessCondition><accessCondition type="restriction on access">BodyHTMLGrant: Restricted</accessCondition><accessCondition type="restriction on access">BibliographyGrant: Restricted</accessCondition><accessCondition type="restriction on access">ESMGrant: Restricted</accessCondition><part><extent unit="pages"><start>207</start><end>209</end></extent></part><recordInfo><recordOrigin>Springer-Verlag, 1980</recordOrigin><recordIdentifier>216_1980_Article_BF00476185.pdf</recordIdentifier></recordInfo></mods></record>Pour manipuler ce document sous Unix (Dilib)
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